Ventilator



March 2 1941.

V. S. LUNDEL-l- VENT ILATOR Filed March 1, 1939 Patented Mar. 25, 1941UNITED, STATES PATENT OFFICE Victor S. Lundell, Jamestown, N. Y.

Application March 1, 19-39, Serial No. 259,185

Claims.

This invention relates to an improvement in ventilators and moreparticularly to ventilators for installation and use with windows of theswinging or sliding type.

In the disclosed form, the invention is applied to and forms part of acasement window, being interposed between the glass panel and either theupper or lower window rail. The ventilator engages the window rail andprovides a seat and securement for one edge of the glass panel.

One of the objects of the invention lies in the provision of aventilator for application to a swinging or sliding sash.

Another object of the invention lies in the provision of aventilatorthat may be built into a casement sash or subsequently addedthereto upon removal of the glass panel and replacement by one ofsmaller dimensions.

Another object of the invention lies in the provision of a ventilatorfor a swinging or sliding sash that provides both inside and outsideclosure means for the ventilator opening.

Another object of the invention lies in the provision of a ventilatorhaving an exterior closure member which serves as a hood or shield toprevent ingress of the elements.

Another object of the invention lies in the provision of a ventilatorhaving an inside closure that serves to prevent foreign particles fromentering the space within the ventilator.

Another object of the invention lies in the provision of a ventilatorhaving a closure member adapted to receive and seat a screen.

Other and further objects and advantages of the invention will be morefully understood from a consideration of the following specificationtaken in conjunction with the accompanying drawing; and in which- Figure1 is a perspective view of a casement window in which is embodied oneform of the invention;

Figure 2 is a perspective view of the ventilator removed from thecasement window illustrated in Figure 1; Y

Figure 3 is a vertical sectional View of the invention, being takensubstantially on the line 3-3 of Figure 1; V V

Figure 4 is a vertical sectional view similar to that of Figure 3,showing the movable element of the ventilator in open position andprovided with a screen; I

Figure 5 is a fragmentary horizontal sectional view of one end of theventilator, being taken substantially on the line 5.5 of Figure 3;

Figure 6 is a further horizontal sectional view of one end of theventilator with the rotatable element removed;

Figure 7 is a vertical sectional view of a modification of theventilator; and

Figure 8 illustrates the application of the in- 5 vention to a topposition in a window.

Reference is now had to the drawing wherein the numeral I0 is employedto generally designate a conventional casement window structure. Thewindow comprises a frame II and sash I2. 10 In cross section the railsof the frame and sash are conventional, as illustrated. In theapplication of a ventilator, embodying the present invention, to thelower portion of a casement window, said ventilator is designed to restupon the lower horizontal sash rail I3. This rail includes a horizontalweb portion I4, an inner upstanding flange l6, and an outer downwardlydirected flange I1. 'Ihe vertical rails N3 of the sash are similar tothe rail l3 in cross section.

The ventilator I9 is adapted to be mounted on the rail I3 and comprisesrelatively fixed and movable members 2| and 22. The fixed member 2|,when adapted for use with a casement window, comprises end blocks 23having vertical 25 channels 24 located adjacent the inner face thereof.These channels are adapted to receive the inwardly projecting flanges ofthe side rails l8. The blocks 23 are connected by a hood or shield 26.In the present disclosure the hood is formed with slots 21 adapted toreceive screws 28 that have threaded engagement with the upper curvedsurfaces of the blocks. It is apparent, however, that the blocks andhood may be formed integral by stamping from sheet metal or by casting.The outer faces 29 of the blocks 23 are of a generally circular contour,which contour is followed by the hood 26. The inner edge of the hoodterminates in an upstanding flange 3| that is in vertical alignment withthe channels 24 and, therefore, with the inwardly directed flange of theupstanding sash rails I8. The blocks 23, in the present form of theinvention,

- are each formed with a circular bearing portion 32 that projectsinwardly of the ends of the ventilator and is of a diameter less thanthe width and height of the blocks.

The rotatable member 22 of the ventilator comprises inner' and outerelements 33 and 34. The inner element includes a curved portion 36 thatterminates in a short flange 31 along one edge and a more extensiveflange 38 along the other edge. The curved portion 36 of the element 33is secured to circular plates 39. These plates are positioned adjacentthe ends of the elements 33 and 34, being in close proximity with thebearing portions 32. One or more intermediate plates 39 may be provided,depending on the length of the ventilator. The outer element 34 isformed with a curved portion 4| and terminates along one longitudinaledge in an outwardly directed flange 42. The element 34 is secured toplates 39 substantially diametrically opposite the curved portion 36 ofelement 33. A ventilating passageway 35 is thus provided. The ends ofelements 33 and 34, projecting beyond the plates 39, provide partialcircular recesses into which the end bearings 32 project. Thus, themember 22 is mounted for rotation in the member 2|.

Reference is now had to Figure '1 of the drawing wherein is shown amodification of the structure above described. In this instance, thefixed member 43 includes top and bottom elements 44 and 46. The topelement is formed with a hood portion 41 similar to the hood 26heretofore described. However, the upper portion of the hood 41 is madewith a horizontal flange 48 that terminates in an upwardly directedflange 49. The lower element 45 is an angular bar having an upstandingflange that terminates in a laterally offset portion 52. The offsetportion 52 overlies the upper edge of flange l6 of the rail l3, being inthe same vertical plane therewith. The upper and lower elements of thisfixed member are connected by end blocks heretofore described. Therotatable member of this modification comprises elements 53 and 54.Element 54 is substantially identical with the element 33 heretoforedescribed. Element 54, however, is formed with an upstanding flange 56that contacts a shoulder formed at the jointure of the hood 41 withflange 48.

It will be noted in the structure of Figure 3 that the rotatable member22, when in closed position, provides three-surface contact with thefixed member 2|; namely, flanges 31, 38, and 42. In the modification ofFigure '7, however, due to the additional provision of flange 56,four-surface contact is had between the rotatable memher and the fixedmember when the ventilator is closed. Furthermore, in the modification,provision of a bottom element 46 may, under certain circumstances,provide better seating for the ventilator'on the horizontal window rail13.

Attention is now directed to Figure 8 wherein is shown an application ofthe present invention to the top of a casement window. In this instance,the fixed member 51 includes a hood 58 that terminates adjacent thedownwardly directed flange 53 of the upper horizontal rail SI of thesash. The lower element of this member is generally T-shaped andincludes upper and lower flanges 62 and 33. The upper flange serves as astop to limit movement of the rotatable member and the lower flangesubstitutes for flange 53 in the positioning of a glass panel 64. Therotatable member 66 may be substantially identical with the rotatablemembers heretofore described.

It is to be particularly noted in the present invention that therotatable member is comprised of two semi-circular spaced apart elementsand that the flanges on these elements serve as stops to limit movementand to constitute a contact seal when the ventilator is closed.Furthermore, the ventilator is closed ext-eriorly as well as interiorlyby the provision of two rotatable elements. Thus, neither dirt, norsnow, nor ice can interfere'with the proper functioning of the device.In Figure 4 of the drawing there is shown a section of screening 61.Should it be found necessary to screen a ventilator of this type, asmall piece of screening may be cut and inserted into the circularportion of the rotatable member in a curved position and the naturalspringiness of the screen will hold it in place. It is to be understoodthat the inner and outer elements of the rotatable member aresubstantially in balance and, therefore, no spring or latch means isrequired to maintain the ventilator in either open or closed position.Furthermore, should the ventilator be open and a storm occur, it isconceivable that wind striking the large flange 42 would close theventilator.

The present invention, as mentioned above, is adaptable for mounting inwindows previously installed. The procedure simply involves removing theglass panel, inserting the ventilator in thesash frame, shortening theglass equivalent to the ventilator height, and repositioning said glass.

Although applicant has shown and described only a few of severalmodifications of the invention and its application to a casement window,it will be understood by those skilled in the art that othermodifications or variations of the structure may be made and arecontemplated insofar as they are within the spirit and scope of theinvention as defined in the hereunto anneXed claims.

Having thus set forth my invention what I claim as new and for which Idesire protection by Letters Patent is:

1. In a window structure having a frame and panel, a ventilatorcomprising a frame engaging member, said member cooperating with saidframe to bound said panel and having a ventilating opening therein, arotatable member mounted in said opening, the ends of said rotatablemember being recessed and receiving corresponding portions of the frameengaging member to provide relative pivotal movement of the members,said rotatable member including spaced elements adapted, when saidventilator is closed, to provide inner and outer closures for saidopening.

2. In a window structure having a frame and panel, a ventilatorinterposed between one end of said panel and an adjacent rail of saidframe, said ventilator comprising fixed and rotatable members, saidfixed member being engaged with said window frame and cooperatingtherewith to provide a ventilating opening, a portion of said fixedmember projecting laterally beyond said window as ,a hood for saidopening and means pivotally supporting said rotatable member in saidopening.

3. In a window structure having a frame and panel, a ventilatorcomprising a stationary member, means forming a part of said memberengageable with certain of the rails of said frame, a portion of saidmember projecting laterally beyond the vertical confines of said windowto form a hood, said member having a rectangular ventilating opening, arotatable member mounted for pivotal movement in said opening, and meanson said rotatable member, said means, when said ventilator is closed,serving as an exterior closure adjacent said hood.

4. In a window structure having a frame and panel, a ventilatorcomprising a stationary member interposed between one edge of said paneland an adjacent rail of said frame, said member having a rectangulartransverse ventilating opening, a hood on said member projectinglaterally beyond the vertical confines of said window and partiallyclosing the exterior end of said opening, a rotatable member mounted forpivotal movement within said opening, and means on said rotatable membercooperating with said hood to close the exterior end of said openingwhen said ventilator is closed.

5. In a window structure having a frame and panel, a ventilatorcomprising a stationary member interposed between one edge of said paneland an adjacent rail of said frame, said member having a rectangulartransverse ventilating opening, a hood, on said member projectinglaterally beyond the vertical confines of said window, a rotatablemember mounted for pivotal movement in said opening, spaced elementsforming part of said rotatable member, said elements, when saidventilator is in closed position, serving as closures for the interiorand exterior ends of said opening and being in contact with said memberand said frame.

VICTOR S. LUNDELL.

